This is a logserver sample config for rsyslog that enables you to separate the GitHub Enterprise VM's log files by $programname. (/etc/rsyslog.conf, /etc/rsyslog.d/99-central.conf)

99-central.conf

$template DYNexceptions, "/var/log/hosts/%HOSTNAME%/exceptions.log"
$template DYNgit_auth, "/var/log/hosts/%HOSTNAME%/github_gitauth.log"
$template DYNgit_http, "/var/log/hosts/%HOSTNAME%/github_git-http-server.log"
$template DYNmemcached, "/var/log/hosts/%HOSTNAME%/github_memcached.log"
$template DYNnodeload, "/var/log/hosts/%HOSTNAME%/github_nodeload.log"
$template DYNredis, "/var/log/hosts/%HOSTNAME%/redis.log"
$template DYNresque, "/var/log/hosts/%HOSTNAME%/github_resque.log"
$template DYNsolr, "/var/log/hosts/%HOSTNAME%/solr.log"
$template DYNsolr_build_indexes, "/var/log/hosts/%HOSTNAME%/solr_indexes.log"
$template DYNunicorn, "/var/log/hosts/%HOSTNAME%/github_unicorn.log"
$template DYNenterprise-manage_unicorn, "/var/log/hosts/%HOSTNAME%/enterprise-manage_unicorn.log"
$template DYNslumlord_unicorn, "/var/log/hosts/%HOSTNAME%/github_slumlord_unicorn.log"
$template DYNweblogs, "/var/log/hosts/%HOSTNAME%/github_access.log"

if \
  $source != 'localhost' \
		and \
	$programname == 'github_exceptions' \
then	?DYNexceptions
& ~

if \
	$source != 'localhost' \
		and \
	$programname == 'github_gitauth' \
then	?DYNgit_auth
& ~

if \
	$source != 'localhost' \
		and \
	$programname == 'github_git_http_server' \
then	?DYNgit_http
& ~

if \
	$source != 'localhost' \
		and \
	$programname == 'github_memcached' \
then	?DYNmemcached
& ~

if \
	$source != 'localhost' \
		and \
	$programname == 'nodeload' \
then	?DYNnodeload
& ~

if \
	$source != 'localhost' \
		and \
	$programname == 'github_redis' \
then	?DYNredis
& ~

if \
	$source != 'localhost' \
		and \
	$programname == 'github_resque' \
then	?DYNresque
& ~

if \
	$source != 'localhost' \
		and \
	$programname == 'solr' \
then	?DYNsolr
& ~

if \
	$source != 'localhost' \
		and \
	$programname == 'github_solr_index_build_gists' \
then	?DYNsolr_build_indexes
& ~

if \
	$source != 'localhost' \
		and \
	$programname == 'github_unicorn' \
then	?DYNunicorn
& ~

if \
	$source != 'localhost' \
		and \
	$programname == 'enterprise_manage_unicorn' \
then	?DYNenterprise-manage_unicorn
& ~

if \
	$source != 'localhost' \
		and \
	$programname == 'slumlord_unicorn' \
then	?DYNslumlord_unicorn
& ~

if \
	$source != 'localhost' \
		and \
	$programname == 'github_access' \
then	?DYNweblogs
& ~

rsyslog.conf

#  /etc/rsyslog.conf  Configuration file for rsyslog.
#
#			For more information see
#			/usr/share/doc/rsyslog-doc/html/rsyslog_conf.html
#
#  Default logging rules can be found in /etc/rsyslog.d/50-default.conf


#################
#### MODULES ####
#################

$ModLoad imuxsock # provides support for local system logging
$ModLoad imklog   # provides kernel logging support (previously done by rklogd)
#$ModLoad immark  # provides --MARK-- message capability

# provides UDP syslog reception
$ModLoad imudp
$UDPServerRun 5140

# provides TCP syslog reception
$ModLoad imtcp
$InputTCPServerRun 5140

###########################
#### GLOBAL DIRECTIVES ####
###########################

#
# Use traditional timestamp format.
# To enable high precision timestamps, comment out the following line.
#
$ActionFileDefaultTemplate RSYSLOG_TraditionalFileFormat

# Filter duplicated messages
$RepeatedMsgReduction on

#
# Set the default permissions for all log files.
#
$FileOwner syslog
$FileGroup adm
$FileCreateMode 0640
$DirCreateMode 0755
$Umask 0022
$PrivDropToUser syslog
$PrivDropToGroup syslog

#
# Where to place spool files
#
$WorkDirectory /var/spool/rsyslog

#
# Include all config files in /etc/rsyslog.d/
#
$IncludeConfig /etc/rsyslog.d/*.conf